CN105823445A - X-ray thickness gauge probe - Google Patents
X-ray thickness gauge probe Download PDFInfo
- Publication number
- CN105823445A CN105823445A CN201610358012.0A CN201610358012A CN105823445A CN 105823445 A CN105823445 A CN 105823445A CN 201610358012 A CN201610358012 A CN 201610358012A CN 105823445 A CN105823445 A CN 105823445A
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- electric capacity
- resistance
- amplifier
- ionization chamber
- gas ionization
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Electron Tubes For Measurement (AREA)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses an X-ray thickness gauge probe comprising a metal shell body which is internally provided with a gas ionization chamber, a preamplifier board, and a high-voltage module. The front end of the gas ionization chamber is provided with a window. The gas ionization chamber is connected with the preamplifier board. The high-voltage module is electrically connected with the gas ionization chamber. The preamplifier board is provided with a high-power and low-noise operational amplifier module. The probe further comprises a shielding device which is fixedly arranged outside the window. The probe is simple in structure principle, and can quickly detect the intensity of X-rays penetrating a steel board. The adopted high-power and low-noise operational amplifier module can stably amplify weak signals, and is of low distortion. In addition, as the shielding device is arranged outside the window, electromagnetic interference is prevented, and the accuracy of detection is improved.
Description
Technical field
The present invention relates to thickness meter probe technical field of structures, be specially a kind of X-ray ga(u)ging instrument probe.
Background technology
Coating thickness detector can nondestructively measure the thickness of non-conductive coating on the thickness of Non-magnetic Coatings On Magnetic Substrates coating and nonmagnetic metal matrix.Coating thickness tester has that measurement error is little, reliability is high, good stability, the feature such as easy and simple to handle, it is to control and ensure the requisite detecting instrument of product quality, it is widely used in the detection fields such as manufacturing industry, metal-processing industry, chemical industry, commodity inspection, coating thickness detector probe is then its of paramount importance parts, has influence on measurement efficiency and certainty of measurement.Existing thickness meter probe structure is complicated, poor anti jamming capability, easily causes measurement error, and the signal gathered there is also distortion phenomenon, affects certainty of measurement.
Summary of the invention
It is an object of the invention to provide a kind of X-ray ga(u)ging instrument probe, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of X-ray ga(u)ging instrument probe, including metal shell body, described metal shell internal body portion is not provided with gas ionization chamber, preamplification board and high-pressure modular, described gas ionization chamber front end is provided with window, described gas ionization chamber is connected with preamplification board, described high-pressure modular is electrically connected with gas ionization chamber, described preamplification board is provided with high power low noise operational amplification module, also include that screening arrangement, described screening arrangement are fixedly installed on outside window.
Preferably, described high power low noise operational amplification module includes operational amplifier, two-stage field effect broadband amplifier and choking-winding, one input of described operational amplifier connects resistance B one end and electric capacity B one end respectively, electric capacity B other end ground connection, the resistance B other end connects resistance A one end and electric capacity A one end respectively, the outfan of electric capacity A other end concatenation operation amplifier, another input of operational amplifier connects resistance C one end and resistance D one end respectively, resistance C other end ground connection, the outfan of resistance D other end concatenation operation amplifier；First end of described two-stage field effect broadband amplifier connects electric capacity E one end, the electric capacity E other end connects resistance F one end, the outfan of resistance F other end concatenation operation amplifier, second end of two-stage field effect broadband amplifier connects electric capacity F one end, electric capacity G one end, electric capacity H one end respectively by choking-winding, and the electric capacity F other end, the electric capacity G other end, the equal ground connection of the electric capacity H other end, 3rd end of two-stage field effect broadband amplifier passes through electric capacity D, the outfan of resistance E concatenation operation amplifier, two-stage field effect broadband amplifier the 4th end ground connection.
Preferably, described screening arrangement includes insulating cover body and being arranged on the metal conducting layer on the external side of described insulating boot, and the thickness of described metal conducting layer is 0.02-0.05 millimeter, and the thickness of described insulation cover body is 1.1-1.8 millimeter.
Compared with prior art, the invention has the beneficial effects as follows:
(1) present configuration principle is simple, it is possible to quickly detection penetrates the X-ray intensity of steel plate, the high power low noise operational amplification module of employing, it is possible to small-signal is amplified by stable realization and the distortion factor is low.
(2) on the gas ionization chamber window of the present invention, screening arrangement is set, it is possible to prevent electromagnetic interference, improve the accuracy of detection.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the high power low noise operational amplification module schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1-2，The present invention provides a kind of technical scheme: a kind of X-ray ga(u)ging instrument probe,Including metal shell body 1，Described metal shell body 1 is internal is respectively equipped with gas ionization chamber 2、Preamplification board 3 and high-pressure modular 4，Described gas ionization chamber 2 front end is provided with window 5，Described gas ionization chamber 2 is connected with preamplification board 3，Described high-pressure modular 4 is electrically connected with gas ionization chamber 2，Described preamplification board 3 is provided with high power low noise operational amplification module 6，Also include screening arrangement 7，Described screening arrangement 7 is fixedly installed on outside window 5,Screening arrangement 7 includes insulating cover body 11 and being arranged on the metal conducting layer 12 on outside described insulation cover body 11，The thickness of described metal conducting layer 12 is 0.02-0.05 millimeter，The thickness of described insulation cover body 11 is 1.1-1.8 millimeter,The screening arrangement used is prevented from electromagnetic interference，Improve the accuracy of detection.
In the present embodiment, high power low noise operational amplification module 6 includes operational amplifier 8, two-stage field effect broadband amplifier 9 and choking-winding 10, one input of described operational amplifier 8 connects resistance B2a one end and electric capacity B2b one end respectively, electric capacity B2b other end ground connection, the resistance B2a other end connects resistance A1a one end and electric capacity A1b one end respectively, the outfan of electric capacity A1b other end concatenation operation amplifier 8, another input of operational amplifier 8 connects resistance C3a one end and resistance D4a one end respectively, resistance C3a other end ground connection, the outfan of resistance D4a other end concatenation operation amplifier 8；First end 91 of described two-stage field effect broadband amplifier 9 connects electric capacity E5b one end, the electric capacity E5b other end connects resistance F6a one end, the outfan of resistance F6a other end concatenation operation amplifier 8, second end 92 of two-stage field effect broadband amplifier 9 connects electric capacity F6b one end respectively by choking-winding 10, electric capacity G7b one end, electric capacity H8b one end, and the electric capacity F6b other end, the electric capacity G7b other end, the equal ground connection of the electric capacity H8b other end, 3rd end 93 of two-stage field effect broadband amplifier 9 is by electric capacity D4b, the outfan of resistance E5a concatenation operation amplifier 8, two-stage field effect broadband amplifier 9 the 4th end 94 ground connection.Signal is processed by operational amplifier 8, ensure the quality of transmission signal, and by feedback principle, signal message is amplified 2 times, pass to two-stage field effect broadband amplifier 9 below the most again and again signal is carried out secondary amplification, last again by signal output, the high power low noise operational amplification module that the present invention uses, it is possible to small-signal is amplified by stable realization and the distortion factor is low.
Operation principle: when X-ray shines on gas ionization chamber window, cause the ionisation effect of intracavity gas, produce weak current, high power low noise operational amplification module on preamplification board is amplified to about 5V signal, after junction box transfers, deliver to the main electricity rearmounted amplifying stage of cabinet in differential signal mode and amplify, within maximum voltage is 10V after amplification, being then sent through on the analog acquisition card terminal of master computer, high-pressure modular provides gas ionization chamber and normally works required external high pressure.Present configuration principle is simple, it is possible to quickly detection penetrates the X-ray intensity of steel plate.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can carry out multiple change without departing from the principles and spirit of the present invention, revise, replace and modification, the scope of the present invention be defined by the appended.
Claims (3)
1. an X-ray ga(u)ging instrument probe, including metal shell body (1), it is characterized in that: described metal shell body (1) is internal is respectively equipped with gas ionization chamber (2), preamplification board (3) and high-pressure modular (4), described gas ionization chamber (2) front end is provided with window (5), described gas ionization chamber (2) is connected with preamplification board (3), described high-pressure modular (4) is electrically connected with gas ionization chamber (2), described preamplification board (3) is provided with high power low noise operational amplification module (6), also include screening arrangement (7), described screening arrangement (7) is fixedly installed on window (5) outside.
nullA kind of X-ray ga(u)ging instrument probe the most according to claim 1，It is characterized in that: described high power low noise operational amplification module (6) includes operational amplifier (8)、Two-stage field effect broadband amplifier (9) and choking-winding (10)，One input of described operational amplifier (8) connects resistance B(2a respectively) one end and electric capacity B(2b) one end，Electric capacity B(2b) other end ground connection，Resistance B(2a) other end connects resistance A(1a respectively) one end and electric capacity A(1b) one end，Electric capacity A(1b) outfan of other end concatenation operation amplifier (8)，Another input of operational amplifier (8) connects resistance C(3a respectively) one end and resistance D(4a) one end，Resistance C(3a) other end ground connection，Resistance D(4a) outfan of other end concatenation operation amplifier (8)；nullFirst end (91) of described two-stage field effect broadband amplifier (9) connects electric capacity E(5b) one end，Electric capacity E(5b) other end connection resistance F(6a) one end，Resistance F(6a) outfan of other end concatenation operation amplifier (8)，Second end (92) of two-stage field effect broadband amplifier (9) connects electric capacity F(6b respectively by choking-winding (10)) one end、Electric capacity G(7b) one end、Electric capacity H(8b) one end，And electric capacity F(6b) other end、Electric capacity G(7b) other end、Electric capacity H(8b) the equal ground connection of the other end，3rd end (93) of two-stage field effect broadband amplifier (9) passes through electric capacity D(4b)、Resistance E(5a) outfan of concatenation operation amplifier (8)，Two-stage field effect broadband amplifier (9) the 4th end (94) ground connection.
A kind of X-ray ga(u)ging instrument probe the most according to claim 1, it is characterized in that: described screening arrangement 7 includes insulating cover body (11) and being arranged on the metal conducting layer (12) on described insulation cover body (11) outside, the thickness of described metal conducting layer (12) is 0.02-0.05 millimeter, and the thickness of described insulation cover body (11) is 1.1-1.8 millimeter.
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| CN201610358012.0A CN105823445B (en) | 2016-05-26 | 2016-05-26 | A kind of X-ray ga(u)ging instrument probe |
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| CN201610358012.0A CN105823445B (en) | 2016-05-26 | 2016-05-26 | A kind of X-ray ga(u)ging instrument probe |
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| CN105823445A true CN105823445A (en) | 2016-08-03 |
| CN105823445B CN105823445B (en) | 2018-04-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092269A (en) * | 2016-08-12 | 2016-11-09 | 甘肃省治沙研究所 | A kind of portable thin well level of ground water tacheometer |
| CN106094778A (en) * | 2016-08-30 | 2016-11-09 | 中天科技装备电缆有限公司 | A kind of intelligent production operation system and using method |
| CN106403903A (en) * | 2016-08-30 | 2017-02-15 | 浙江启昊科技有限公司 | Laser digital high-precision imaging device |
| CN107065635A (en) * | 2016-10-21 | 2017-08-18 | 西安科技大学 | A kind of intelligent automation control system |
| CN116858145A (en) * | 2023-08-31 | 2023-10-10 | 钛玛科(江苏)工业科技有限公司 | CAN bus interface digital X-ray thickness measuring sensor and method |
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| CN2791640Y (en) * | 2004-08-18 | 2006-06-28 | 天津中和科技有限公司 | Integrated x-ray detector |
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| CN103889198A (en) * | 2014-04-16 | 2014-06-25 | 曾芳勤 | Shielding case and manufacturing method thereof |
| CN205785123U (en) * | 2016-05-26 | 2016-12-07 | 马鞍山恒瑞测量设备有限公司 | A kind of X-ray ga(u)ging instrument probe |
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2016
- 2016-05-26 CN CN201610358012.0A patent/CN105823445B/en active Active
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| CN2791640Y (en) * | 2004-08-18 | 2006-06-28 | 天津中和科技有限公司 | Integrated x-ray detector |
| CN101526622A (en) * | 2008-03-05 | 2009-09-09 | 清华大学 | Detector device used for radiation monitoring |
| JP2012138168A (en) * | 2010-02-23 | 2012-07-19 | Canon Inc | Radiation generator and radiation imaging system |
| CN101797589A (en) * | 2010-03-02 | 2010-08-11 | 马鞍山市锐泰科技有限公司 | Isotope thickness meter probe in novel structure |
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| CN205785123U (en) * | 2016-05-26 | 2016-12-07 | 马鞍山恒瑞测量设备有限公司 | A kind of X-ray ga(u)ging instrument probe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106092269A (en) * | 2016-08-12 | 2016-11-09 | 甘肃省治沙研究所 | A kind of portable thin well level of ground water tacheometer |
| CN106094778A (en) * | 2016-08-30 | 2016-11-09 | 中天科技装备电缆有限公司 | A kind of intelligent production operation system and using method |
| CN106403903A (en) * | 2016-08-30 | 2017-02-15 | 浙江启昊科技有限公司 | Laser digital high-precision imaging device |
| CN107065635A (en) * | 2016-10-21 | 2017-08-18 | 西安科技大学 | A kind of intelligent automation control system |
| CN116858145A (en) * | 2023-08-31 | 2023-10-10 | 钛玛科(江苏)工业科技有限公司 | CAN bus interface digital X-ray thickness measuring sensor and method |
| CN116858145B (en) * | 2023-08-31 | 2024-08-16 | 钛玛科(江苏)工业科技有限公司 | CAN bus interface digital X-ray thickness measuring sensor and method |
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| CN105823445B (en) | 2018-04-10 |
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